Method for finishing garnish moldings



Nov. 10, 1936. c. P. SHAW 2,060,641

METHOD FOR FINISHING-GARNISH MOLDINGS Filed March 28, 1936 IN V ENTOR.

% H F Mar/66 F. 6mm

w T1 J1 '15 BY y MQWCEMRNEYS Patented Nev. io, 193s UNITED STATESMn'rnon roa nnvisnmc GABNISI! Mommas Charles '1'. Shaw, Detroit, Mich,assignor to Detroit Moulding Corporation, Detroit, Mich.

Application March 28, 1936, Serial No. 71,528

9 Claims. (CL 101-35) Garnish moldings or frames such as are commonlyused in automobiles are largely furnished in wood grained designs or animitation of the wood grain and owing to the irregular shape of 5 theseand the cross section, care must be exercised where the entire finish isof a wood grain design in order to avoid overlaps or in order to securea matchingof the grain applied to different surfaces or zones of theframe by succeed:

in ing steps.

It is the main objects of this invention,

First, to provide a garnish molding or the like with an attractivefinish which can be economi cally anduniformly produced.

15 Second, to provide a method of finishing garnish moldings and thelike in which adjacent surfaces may be finished with different designswithout blurring oroverlapping of either design and giving theappearance of two strips or pieces 9 of material brought edge to edge.

Third, to provide a method of finishing garnish moldings and likeframeswhich may be practiced by relatively .unskilled workmen with uniformityof results.

25 Fourth, to provide an apparatus for use in the applying of ornamentalcoatings to garnish moldings and the like which enables high productionwith desirable and very uniform results.

Objects relating to details. will appear from 30 the description tofollow. The invention is defined and pointed out in the claims.

A structure which is a preferred embodiment of the invention isillustrated in the accompanying drawing, in which:

85 Fig. 1 is a perspective view of a garnish mold-- ing or frame 'fortherear window of an automobile.

Fig. 2 is a fragmentary view illustrating the step of applying a grainedcoating or grain de- 40 sign coating to the inner surface of a windowframe or garnish molding.

Fig. 3 is a horizontal section on line 3-3 of Fig. 4 of one form orapparatus for practicing certain steps of my method.

Fig. 4 is a fragmentary view on line 4-4 of Fig. 3. v I

Fig; 5 'is a sectional perspective view illustrating the molding afterthe wiping step. Fig. 6 is a fragmentary perspective view show- 50.ingthe molding after the finish coating'design has been applied to thewiped surface.

Fig. '7 is a plan view illustrating the steps of applying the ornamentalcoating to the wiped surface.

illustrating an automatic operating machine for wiping and applying thecoating to the wiped surface. I

Fig. 9 is a fragmentary perspective view illustrating the molding beforethe wiping step. 4 5

In the accompanying drawing, no attempt has been made to show the partsin their relative dimensions andcertain of the views are largely ofdiagrammatic character.

Referring to thedrawing, the frame or garnish 10 molding I is of channelcross section having an inner surface 2, a face surface 3 and an innerside flange 4. Commonly, the surface of the flange 4 is not exposed, sothat its finish is not important.

It is now quite common practice to finish the surfaces 2 and 3 with woodgrain coatings or wood grain designs and owing to the angular relationof these surfaces it is difiicult to apply the coatings so that they donot overlap, thus resulting in a smudgy appearance, or so that they meetcompletely-in either, case requiring hand work or retouching to securean acceptable finish.

The grain design coating is applied by means of a transfer roller 5formed of suitable resilient composition such as printing rollcomposition,. the roller having handles 6 at each end for manipulation.The design is picked up from a suitably inked printing plate, the designbeing indicated on the roller at I. This'grain design coating is appliedto the inner surface 2 of the molding by passing the roller around theinner surface, resulting in a grain design coating 8 on the frame asindicated in Figs. 1, 5 and 6.

In applying the grain design coating to the surface 2, it is quiteimpossible to-maintain a straight line or edge for the coating adjacentthe surface 3. Necessarily, portions of the irregular margin of thegrain 'design will overlap onto surface 3 as designated by referencenumeral 80 in 40 Fig. 9. Therefore, as a second step of my method,I-wipe the surface3 by pass ng thereover a resiiient cleaning rollerequipped th means for keeping it clean, a resilient roller of thecomposition used for applying the coating being suitable for thepurpose, such roller being indicated at 9 in Fig; 3. The roller 5,suitably cleaned, may be used as the wiping roller, but I have, forconvenience, designated the roller by another numeral. To accomplishthis step, the'work or molding I is laid upon a suitable bed or table I0and the roller 9 translated across the same with uniform pressure, theroller with itscleaning mechanism being preferably carried in a carriageH by traveling on rails I2 at the side of the table. rigs cleans thesurface I and picks up any ink that overlaps thereon, bringing the edgeof the coating 0 to a straight edge It-see Figs. 5 and 6, Fig. 5 beingintended to show the molding after the wiping operation. I

r I then apply to the surface 3 a coating or symmetrical patternindicated at llin Figs. 1 and 6, this pattern being approximatelysymmetrical throughout. This surface 3 is coated by passing the rolleracross a suitably inked plate, then passing the roller across thesurface 3 in Fig. 5. This may be accomplished by placing the roller inthe carriage H and by holding the carriage down upon the tracks. Uniformpressure is applied to the roller so that its design is applied to thesurface 3 and brought to the meeting line It with the previously appliedcoating 8 so that the two coatingsare brought edge to edge withoutsubstantial overlap and retouching is unnecessary or substantiallyeliminated with reasonable care in the following of the successivesteps.

The design or pattern of the coatings ll being approximatelysymmetrical-that is, a two-way pattem-it may be applied by passing thetransfer roller across the frame or molding as indicated in Fig. 7, theapplied design being approximately symmetrical "throughout as well asbeingbrought into edge to edge relation to the grain design.

This produces a very attractive finish and one having the appearance oftwo materials brought edge to edge, one having a grain design and theother a formal or symmetrical design. This results in a substantialreduction in the cost of applying the ornamental finish and enables theobtaining of uniform results with relatively unskilled workmen.

cle is highly attractive in appearance.

In the embodiment shown in Fig. 8, the molding or work is laid upon aconveyor l5, being secured thereon by the clips or clamps l6 and istranslated or carried past a pair of wiping rollers i1 equipped withcleaning mechanisms or doctors l'lll which wipe the surface 3 and brinthe previously applied coating to a straight edge. It is then broughtinto contact with the transfer roller i8 coacting with the cylinderplate lflwhich in turn coacts with the ink transfer roller 20 to whichink is applied by the ink roller 2!. In this embodiment, the wiping andprinting or coating operations for the surface 3 are entirely automatic,the work being clamped upon the conveyor i5 and thereby translatedthrough the wiping and printing or transfer rollers.

I have illustrated certain apparatus for prac- As stated, the finishedarti-.

ticingmy method partially in conventional form, but it is believed thatthis disclosure will enable the construction of a suitable apparatuseither in automatic or hand operated machines or apparatus. I have notattempted to illustrate and describe the various modifications andadaptations which I contemplate as it is believed that this disclosurewill enable those skilled in the art to practice not only the methodbutto provide suitable apparatus for the practice thereof. Having thusdescribed my .invention, what I claimas new and desire to secure byLetters Patent, is:

l. The method .of p and the like having meeting surfaces includin ;thesteps of passing over one of the surfaces a resilient-transfer rollerfor applying an ornamental grained coating to such surface, passing overan adjacent surface a resilient cleaning roller whereby such surface iswiped and the finishing garnish moldings previously applied grainedcoating is brought to a substantially straight edge, and passing aresilient transfer roller over the wiped surface for applying asymmetrical pattern coating to such wiped surface whereby the coatingson the two surfaces are brought into edge to edge straight-linerelation.

2. The method of finishing garnish moldings and the like having meetingsurfaces including the steps of passing over one of the surfaces a,resilient transfer roller for applying ,an ornamental irregularpatterned coating to such surface, passing over an adjacent surface aresilient cleaning roller whereby such surface is wiped and thepreviously applied coating is brought to a substantially straight edge,and passing a resilient transfer roller over the wiped surface forapplying a symmetrical patterned coating to such wiped surface wherebythe coatings on the two surfaces are brought'into meeting edge to edgerelation.

3. The method of finishing garnish moldings and the like having meetingsurfaces including the steps of passing over one of the surfaces aresilient transfer roller for applying an ornamental coating to suchsurface, passing over an adjacent surface a resilient cleaning rollerwhereby 'such surface is wiped and the previously applied coating isbrought to a substantial- 1y straight edge, and passing aresilient'transfer roller over the wiped surface for applying a coating to suchwiped surface whereby the coatings on the two surfaces are brought intomeeting edge to edge relation.

4. The method of finishing frames of angular cross section including thesteps of applying a grained coating' to the interior surface of theframe by means of a resilient transfer roller, passing a resilientwiping roller across a side surface of the frame with substantiallyuniform pressure whereby the grained coating is wiped to a substantiallystraight edge adiacent such surface, and passing a resilient transferroller having a symmetrical patternthereon over the wiped surface andunder substantially the same pressure as that applied to the wipingroller whereby the grained coating and the symmetrical pattern coatingare in edge to edge non-overlappin relation.

5. The method of coating objects with designs in parallel relationincluding the steps of applying a grained coating to one zone by meansof a resilient transfer roller, wiping an adjacent zone by passingthereover a resilient wiping roller with substantially uniform pressurewhereby the grained coating is wiped to a substantially straight edgeadjacent such second zone, and applying a symmetrical pattern coating tothe wiped zone by means of a resilient transfer roller undersubstantially the same pressure as that applied to the wiping rollerwhereby the grained coating and the symmetrical pattern coating are inedge to'edge non-overlapping relation.

6. The method of coating objects with designs in parallel relationincluding the steps of applying a coating to one'zone, wiping anadjacent zone by passing thereover a resilient wiping roller withsubstantially uniform pressure whereby the applied coating is wiped to asubstantially straight edge adjacent such second zone, and applying acoating to the wiped zone by means of a resilient transfer roller undersubstantially the same pressure as that applied to the wiping rollerwhereby the coatings are in edge to edge non-overlapping relation.

7. The method of finishing frames of angular cross section including thesteps of applyin a coating to the interior surface of the frame, wipinga side surface of the frame by passing thereover a resilient wipingroller whereby the previously applied coating is brought to asubstantially straight edge adjacent such side surface, and applying acoating to such side sureingthe steps of applying a grained coating toone surface of the molding, wiping an adjacent surface of the molding bypassing thereover a resilient roller whereby the grained coating isbrought to a substantially straight edge adjacent said second surface,and applying a symmetrical pattern coating to said second surface bymeans of a resilient transfer roller whereby the grained coating and thesymmetrical pattern coating are in edge to edge non-overlappingrelation. I

9. The method of finishing moldings including the steps of applying agrained coating to one surface of the. molding, wiping an adjacentsurface of the molding to bring the grained coating to a substantiallystraight edge adjacent said second surface, and applying a symmetricalpattern coating to said second surface with the two coatings in edge toedge non-overlapping relation.

CHARLES P. SHAW.

